Typewriter and the like



Oct. 27, 1931. J BARR 1,829,390

TYPEWRITER AND THE LIKE Filed March 7, 1927 3 Sheets-Sheet l J. H. BARRTYPEWRITER AND THE LIKE I Filed March 7, 1927 3 Sheets-Sheet A TTOR/VEY.

I Oct. 27, 1931. I J BARR 1,829,390

TYPEWRITER AND THE LIKE Filed Marth '7, 1927 5 Sheets-Sheet 3 ATTOR/VE).

Patented 0a. 21, 1931 UNITED STATES FA ENT OFFICE I JOHN H. OF ITKACA,YORK, ABSIGNOB TO BABE-MORSE CORPORATION, A.

CORPORATION 0! NEW YORK mnwm'ran AND rm: LIKE Application m Iarch 7,1921. Serial no. 113,271.

This invention relates to typewriters and the like, and particularly tothe control of the letter and line spacing movements of the platenthereof.

It is frequently desirable to move or transport typewriting machines,and in such cases tends upwardly and forwardly from the carriage inorder to beconveniently accessible for manipulation when the carriage isto be returned and line spaced, and it is desirable to decrease theextent to which it projects above the machine in order to permit use ofa smaller shipping or carrying case.

An object of this invention is to provide an improved typewriter or thelike, with which line spacing handle may be lowered in order to decreasethe size of the case required to contain the typewriter for shipping orcarrying purposes, and with which the carriage may be locked againstmovement while being carried or transported.

A further object of the invention is to provide improved means forcontrolling the travel of the carriage, with which the carriage may besecured against endwise movement in either direction. with thestrainremoved from the escapement so as to-avoid injury thereto byshocks or stresses .while the typewriter is being transported.

A further object of the invention is to provide improved and simplifiedline spacing mechanism for the platen which will be exceptionallycompact and durable in construction. and with which the number of linespa ccs through which the platen is moved at each operation may bevaried selectively.

further object of the invention is to provide an improved typewriter orthe like, with which the locking of the carriage and the lowcring of theline space handle may be accomplished with a minimum number of manualoperations, and the carriage locking and line spacing performed with aminimum number of parts.

A further object of the invention is to provide an improved constructionfor accomplishing, each or all of the above objects, which will berelatively simple and inexpensive.

Various other objects and advantages will be apparent from the followingdescription of an embodiment of the invention, and the novel featureswill be particularly pointed out hereinafter in connection with theappended claims.

In the accompanying drawings Fig. 1 is a side elevation of a portion ofa typewriter constructed in accordance with th1s invention;

Fig. 2 is a front elevation of the same;

Fig. 3 is another end elevation of the same, and illustrating partscontrolling the travel of the carriage;

Fig. 4 is an elevation of the escapement mechanism of the same;

Fig. 5 is a similar, fragmentary elevation illustrating the condition ofthe escapement mechanism when the carriage is locked for transportationFig. 6 is a sectional elevation of a portion of the carriage andillustrating parts of the linerspacing mechanism, the section bein takenapproximately along the line 6-6 0 Fig. 2;

Fig. 7 is a similar elevation with the'parts in a difierentoperative'relation to one another, and with a portion of the platenratchet wheel broken away to show parts otherwise hidden thereby;

Fig. 8 is a sectional plan of a portion of theline-spacing mechanism,the section being iaken approximately along the line 8-8 of Fig. 9 is anelevation of a pawl of the linespacing mechanism;

Fig. 10 is an end elevation of the same;

Fig. 11 is a fragmentary elevation of the lever for varying the numberof line spaces the platen will be shifted at each operation of theline-spacing handle;

- also be provided with a-suitable -'platen 6- shaft 7 in end plates 8of the carr age.

embrace a track bar 4 on the frame, therebeing ball or rollingbearingsinterposed between the track bar 4 and thegrooves or guides3 ofthecarriage, as usual: in typewriter constructions. The typewriter maywhich is rotatably mounted by its spindle or 'A, rack bar 9 (Fig.3) maybe secured to the carriage so as to extend in the direction of'itstravel, and is provided with rackteeth meshin with a pinion 10, thelatter being couple by a clutch 11 to a suitable escapement device 12.The carriage is thus, given a step by step movement in letter spacingsurface 15 of a clutch lever 16, so that when the release lever 13isshifted in one direc- 7 tion, the clutch lever 16 will be shiftedtodisconnect the clutch and release the carriage direction for letterspacingpurposes underv the control cf the escapement, as usual in theart. A carriage release lever 13ma .be mounted on the carriage andconnecte by suitable mechanism-to a cam plate or bar 14 which itshiftsagainst or away from a cam from the e'scapement mechanism. Such clutchrelease mechanism is disclosed'and claimed in my co-pending applicationSerial No. 141,390, filed October 13, 1926 to which reference may be hadfor a more complete I description of th1s carriage release mechanism.The foregoing details ofthe carriage release mechanism are per se nopart of the.

from dropping downward through hole present invention.

Referring now particularly to Figs. land 7 a 2, a U-shaped bracketmember 17-is secured ings 18 for rotatably supporting a cylindri-; calspindle or shaft 19 having a flat portion 20 extending along the same atone side. a This shaft or spindle 19 is providedwith a channel ,orgroove 21 (Fig. 12) extending along its side, preferably elther oppositethe flattened edge 20 or at a portion of the peripheral sur-- face ofthe spindle spacedfrom the flat edge portion 20, and in this groove 21 arod 22 isv slidingly mounted.

A hub 23 of a line space handle 24 is fitted over the spindle 19, andthis hub is provided with an aperture 25 in its side wall into which anangular end 26 of the rod 22 extends, so

that the rod 22 and line space handle will be locked together forconcomitant sliding movement along the spindle 19. An axial passage 27through the boss of the line space handle contains a section whichconforms inconfiguration to the external peripheral shape :of'thespindle 19, including the flat edge 20 form a continuation of thepassage 27 exactly corresponding to the periphery of and closely fittingthe spindle 19, exceptfor the groove 21, and provide a rotatable drivingconn ction between them.

The upper end of the spindle 19 may be reduced in size at the pointwhich is rotatably mounted in the upper arm of bracket 17, the shoulderon the spindle thus formed abutting against the bracket varm to revent narm upward movement of the spindle. 28, (Figs. 1, 2and 8) is providedwith a boss having a passage 29 through which the spindle 19 extends,the passage 29 being formed in the same manner as the passage 27 of theline space handle boss 23, that is, by first drilling the passage nearlythrough, and then punchin out the remaining undrilled end .wall. hispassage 29 thus is also keyed by its close contact with the flattenededge 20 [t0 the spindle for rotation therewith, and the arm 28 may alsobe secured against both rotation and endwise movement on the spindle 19by a set screw 29a.- .The lower face of arm 28. bears on the lower armof bracket 17, thus. preventing spindle 19 18 which is the size of thespindle. The parts are assembled by inserting 19 first 11 wardly throughthe lower bracket arm 1 1,

then assembling thereon the parts to be carried thereby, and thentightening screw 29a.

The arm 28 is provided with an extension 30' having an aperture 31adjacent its free end, and the arm 28 is so mounted angularly upon thespindle 19 that when the line space handle is in its normal forwardlyprojecting position, as shown in Figs. 1 and 2, the extension 300i thearm 28 will extend approximately parallel with the adjacent end wall -8of the carriage.

A wire link 32 extends loosely through an aperture 86 in the end plate 8of the carriage, and at one end it extends through the aperture 31 andis bent angularly as at 33 to prevent withdrawal of the link 32 from theextension 30. The other end of the link 32 is bent angularly to thelength of the link, as

at 34, and this angular end is rotatably received in one arm of a bellcrank lever 35, the extreme free end of the angular end 34 being bentover as at 36 to prevent withdrawal of the link 32 from the aperture inthe bell crank 35 through which it passes. The bell crank 35 ispivotally mounted by a screw or pin 37 upon an inclined surface 38 (Fig.2) of the carriage. The arm of the bell crank 35 to which the link 32 isconnected, normally extends approximately crosswise of the length of thelink 32, and the other arm of the bell crank extends generally in thedirection of travel of the carriage. Another link 39 may be rotatablyhooked, one end at 40 (Fig. 2) into an angular end 41 of the last namedarm of the bell crank 35, and at its other end is bent angularly theretoand then endwise to provide a bearing .ortion 39a (Figs. 2 and 6) whichis rotata ly received in a bearing aperture 42 (Figs. 6 and 7) in a pawl43. 1

The pawl 43 is pivoted by a pin 44 to one end of a lever 45, and thelatter is pivoted by pin or screw 46 to an end plate 8 of the car riageso as to swing in a plane transversely of the longitudinal axis of theplaten, the portion of the lever between the pivot pin 44 of the pawland its -own pivot pin 46 being bowed, if necessary, in order to clearthe hearing shaft 7 of the platen. A tail portion 47 on the pawl 43cooperates with a pin 48 upon the lever to limit rotation of the pawl 43in a direction to carry its nose 49 out of driving engagement with theteeth of a ratchet wheel 50 provided upon one end of the platen 6. Whenthe line space handle 24 is rocked in one direction, which is preferablyin a direction to return the carriage and start a new line, the spindle19 will be rocked and the latter, acting through the arm 28, extension30, link 32, bell crank 35 and link 39 will cause a downward pull uponthe pawl 43, thus tending to rock the nose 49 of the latter intodrivingengagenient with the teeth of the ratchet wheel 50, and movementof the pawl and ratchet wheel together during the continued movement ofthe line space handle.

A suitable stop 51 may be provided upon the carriage within the-path oftravel of the pawl 43 with the lever 45, so as to limit movement of thelever 45 and pawl 43 together under the influence or actuation of theline space handle. The pawl 43 and lever 45 will thus at. each operationof the line space handle 24, be shifted through a definite driving path,so that if the pawl is in driving engagement with the ratchet wheelduring the entire movement, the ratchet wheel will be given a similarangular movement. If the pawl is held out of engagement with the teethof the ratchet wheel during a portion of such movement of the line spacehandle, then the line space handle and the platen will only be given anangular movement proportional to the extent of travel of the pawl afterits engagement with the ratchet wheel.

A helical tension spring 52 is connected at one end to the bell crank35, and at its other end to a suitable anchorage pin 53 of the carriageframe, so as to normally return the bell crank 35 and through it theline space lever 24 to normal position. During such return. the link 39will first tend to rock the pawl 43 in a direction to disengage its nose49 from the teeth of the ratchet wheel of the platen, until suchdisengagement occurs and the tail 47 of the pawl strikes the pin 48 onthe. lever 45. Thereafter, continuation of the thrust from the link 39to the pawl 43 will cause a return movement of the pawl 43 and the lever45 to initial or starting position. which is shown in Fig. 6.

In order to hold the pawl 43 out of engagement with the platen ratchetwheel during a portion of the movement of the lever 45 in' a linespacing direction, I may rotatably mount a controlling lever 54 by apivot pin or screw 55 upon the adjacent end plate 8 of the carriage,with a tail portion 56 of the lever 54 extending along the path oftravel of thc pawl 43 with the lever 45. The pawl 43 may be providedwith a laterally extending pin 57 which strikes against and rides alongan edge of the tail 56, when the pawl is rocked in a direction to engagewith the ratchct wheel. The tail 56 of the lever 54 will thus hold thepawl 43 out of driving engagement with the ratchet wheel 50 of theplaten until the pin 57 rides off the tail portion, after which the pawlwill be rocked into engagement with the ratchet wheel by the pull of thelink 39 thereon as the latter shifts the pawl and lever 45 togetherfurther in the line spacing direction. The controlling lever 54 may berocked about the pin 55 into or out of a position in which its tail 56prevents movement of the pawl 43 into engagement with the ratchet wheel50. In Figs. 6 and 7 the lever 54 is illustrated as in the positionwhich it occupies when its tail 56 is in a position to preventengagement of the pawl 43 during a portion of the driving stroke. Thesame position of the lever 54 is shown in dot-ted lines in Fig. 11.

When the controlling lever 54 is shifted or rocked angularly into theposition shown in full lines in Fig. 11. the tail portion 56 will berocked out of the path of travel of the pin 57 sufiiciently to permitrocking of the nose 49 of the pawl 43 into driving engagement with theteeth of the platen ratchet wheel at the very outset of the drivingstroke imparted to the pawl by the line space handle. Thus in that casethe ratchet wheel will be given a full movement until the pawl nose 49strikes the stop 51. By varying the angular position of the lever 54,the extent of movement given the platen ratchet wheel at each actuationof the line space handlemay be selectively varied;

' In order to hold the controiling lever 54 in the different angularoradjusted positions which have been referred to, the end late 8 may beprovided with a plurality apertur'es 58 into which a resilient finger 59of the lever 54 may snap when the lever is in such different angularpositions. Thus the lever 54 will be yieldingly held in each of thepositions into which it may be adjusted. Movement of the lever 54 in adirection to carr its tail. 56 out of the path of travel of t e pin 57maybe limited by a suitable pin 60 provided upon the end plate 8 of thecarriage. in a position for engagement by the resilient finger 59 of thelever 54 when the latter reaches its position in ,which the tail 56 isout of a position in which it controls the pawl 43. Movement of thelever 54 in the other direction is limited by the engagement wardly withthe line space handle- Thus by lowering the line space handle 24 whenthe rod 22- is aline'd with the aperture 63, the f i to the ear 73 ofthe dog rocker 66 and at its lower end of the rod 22 may be shifted intoor through the aperture 63 in the bracket and to lock the carriageagainst movement in either direction. The bracket 61 is so positionedthat this locking occurs when the carriage is in approximately itscentral position,

'as shown in Fig. 2, and the a erture63 is so located in the bracketthat w en the locking rod 22 is received therein to effect a looking ofthe carriage against movement in either direction, the carriagewillbelocked in such a position that the escapement device will be in what maybe termed a half space or partially released position.

Referring particularly to Figs. 4 and 5, the teeth 64 of the escapementwheel cooperate successively with a bevel or fixed dog 65 on a dogrocker 66, and a stepping or loose dog 67 pivoted at 68 on the rocker66. An arm 69 is pivotally hung upon pin 70, also carried by the rocker66, and this arm is pressed yieldingly against a relatively long,approximately straight edge of the dog 67 by a leaf spring 71. Thespring 71 is secured at one end of the arm 69 near the pin 70, andextends along and diverges from the arm toward the free,

end thereof. The free end of the spring bears against an adjustablescrew 72 threaded through an ear 73 of the dog rocker 66. The spring 71and arm 69, by bearing upon the straight edge of the loose dog 67yieldingly urge the dog 67 into the full line position shown in Figs. 4and 5, and acts as a resilient buffer or stop for limiting movement ofthe dog 67 under the force thereon of a tooth 64 of the escapementwheel.

When the carriageis normally at rest, a tooth of the escapement wheelrests against the loose dog 67 and holds the latter in the dotted linepositions of Figs. 4 and 5. At the end of the first step of theescapement, the dog rocker 66 is rocked to disengage laterally the loosedo 67 from a tooth64 and to shift dog 65 into the path of the sametoot-h of the escapement wheel, Fig. 4, at which time the loose dog willsnap into the position shown in full lines in Fig. 4. When the carriageis locked by the dropping of the line space handle and the entry of rod22 into aperture 63, the loose dog 67 will be'in the path of the teeth64 and the carriage will have moved approximately a half step, at whichtime the loose dog 67 and the teeth 64 will occupy the relation shown byfull lines in Fig. 5, their relation 'in a full step escapement beingshown by dotted lines in Fig. 5. Thus, when the carriage is locked in ahalf space or step position, there will be no material strain orpressure between the teeth 64 of the escapement wheel and the dogs 65and 67, and no injury can come to the same by shocks given the tpewriter. The normal position of the loose 0g and of the wheel may bevaried by adjustment of the screw 72.

.A tension spring 74 is connected at one end other endto a pin 75 on astationary part of the escapement frame 76. The spring 74 'yieldinglyurges the rocker 66 in a direction to carry the loose dog 67 into thepath of the teeth'64 of the escapement wheel, the rocker 66 being movedin the opposite direction in the usual manner through the action of thetype bars.

' The downward movement of the boss 23 of the line space handle may belimited by a spacing boss 77 mounted on the spindle 19 above the arm 28.The boss 23 of the handle,

' however, may be yieldingly held in its upper postion, in which itabuts against the upper arm of the bracket 17, by a leaf spring 78 whichis secured at one end in any suitable manner, such as by screws 79 tothe upper face of the upper arm of the bracket 17 the free end of theleaf spring projecting from the arm of the bracket then being bentdownwardly so as to extend parallel to and spaced from the spindle 19,the extreme free tip end of this spring 78 being bent obliquely, as at80, and then in a'reverse direction as at 81, so that the obliqueportion 80 will hook over the lower end of the boss 23 of the line spacehandle when the latter is in its upper limit of movement. as shown inFig. 1.

When the line space handle is forced downwardly, the lower end edge ofthe boss 23 of the handle will act against the oblique surface 80 of theleaf spring and cam the latter outwardly, and as the boss 23 continuesto descend, the portions 80 and 81 of the leaf spring will ride alongthe side surface of'the handle boss. lVhen the carriage is so positionedthat the rod 22 is aligned with the aperture G3, lowering of the handlewill project the rod 22 into the aperture 63 and lock the carriageagainst movement in either direction. lVhen the carriage is so locked,the escapement mechanism will be in a half or partial space position, asshown by full lines in Fig. 5, from which it will be observed that thereis no stress between the escapement wheel and escapement dogs whichwould tend to injure the same by any shocks or blows on the carriage.

To release the carriage for use, it is merely necessary to elevate theline space handle until the portion 80 of the spring again snaps underthe lower end of the boss 23 of the handle and yieldingly holds it inupper position. During such movement the rod 22 will be shifted upwardlyalong the groove 21 of thespindle 19 and removed from locking engagementwith the plate 62. By rocking the line space handle in the usual manner,the,

carria 1e may be returned and the platen rotated in a direction topresent a new line in printing position, the extent of rotation of thepl: ten in this manner being determined my the position of thecontrolling lever 54.

It will be obvious that various changes in the details, which have beenherein described a l ,rated, in. order to explain the naturelliffinvention, may be made by those skilled. in the art within thescope and principle of the invention as expressed in the appendedclaims.

Claims i. In a typewriting machine or the like, a frame. a carriagemovable relatively to said frame, means including an escapement forcontr lling the travel of the carria e, a platen mounted on saidcarriage, an line spacing mechanism movable for line spacing of theplaten, said line spacing mechanism having a part movable in onedirection without causing a line spacing operation of the platenand whenso moved cooperating with said frame to lock the carriage against travelin a half space position of said escapement when the carriage is in oneposition of its travel. whereby the escapement will be relieved ofstresses due to forces acting upon the carriage and tending to move itin either direction.

2. In a typewriting machine or the like, a frame part, a carriage partmovable rela tively to said frame part for letter spacing purposes.m-apement means controlling the relative movement of said parts, andmeans carried by one of said parts and co-acting with the other of saidparts for looking together said parts against relative movement in apartial space position of said escapement.

3. In a typewriting machine or the like, a frame part, a carriagepartmovable relatively to said frame part for letter spacing purposes.and escapement means permitting step by step relative movement of saidparts in a letter spacing direction, one of said parts having a portionprovided with an aperture, the other of said parts having a lockingelement movable transversely of such relative movement and into and outof said aperture, whereby when the locking element is in said aperture,it will lock said parts against relative movement and with theescapement means in a partially spaced condition.

4. In a typewriter or the like, a frame, a carriage movable relativelyto said frame in a letter spacing direction, an escapement deviceincluding an escapement member and escapementdogs for controlling therelative movement of carriage and frame, said frame having a portionwith an aperture opening transversely of the direction of relativemovement of said frame and carriage, and a looking element mounted onthe carriage and movable thereon transversely of'the direction of suchrelative movement into and out of the aperture when alined therewith forlocking the carriage and frame against relative move ment and sopositioned relatively to one another as to effect the interlocking ofthe frame and carriage when said dogs are out of engagement with saidescapement member in a partially letter spaced relation, whereby theescapement member and dogs will be relieved of stresses due to forcestending to cause such relative movement of the carriage and frame.

5. In a typewriter or the like, a frame, a carriage movable relativelyto said frame in a letter spacing direction, an esca ment deviceincluding an escapement mem er and escapement dogs for controlling therelative movement of carriage and frame, said frame having a portionwith an aperture opening transversely of the direction of relativemovement of said frame and carriage, a locking element mounted on thecarriage and movable thereon transversely of the direction of suchrelative movement into and out of the aperture when alined therewith forlocking the carriage and frame against relative movement and sopositioned relatively to one another as to effect the interlocking ofthe frame and carriage when said dogs are out of engagement with saidescapement member, whereby the escapement member and dogs will berelieved of stresses due to forces tending to cause such relativemovement of the carriage and frame, a platen carried by said carriageand movable thereon for line spacing purposes, and means including saidlocking element for causing line spacing movements of said laten.

6. In a typewriter or t e like, a frame part, a carriage part mountedfor movement relatively to said frame part, means including anescapement member and dogs for permittin letter spacing relativemovements of sai frame and carriage parts in a 'step by step manner, anda locking element carried by one of said parts and rojectable therefrominto and out of loc ing engagement with the other part, whereby relativemovement ofsaid parts is prevented and said parts held in a partialletter spaced position, with the stress ofthe escapement member removedfrom the dogs.

7. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing purposes, means including an escapementmember and cooperating dogs for causing step by step letter spacingmovements of said carriage relatively to the frame, and a lockingelement carried by the carriage and projectable into and out of lockingengagement with said frame for locking the carriage against movementrelatively to said frame, and with the escapement member and dogs in ahalf letter space position with the pressure of the escapement memberrelievedfrom the dogs, whereby said escapement member and dogs will beprotected from stresses tending to cause relative movement of the frameand carriage.

8. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing purposes, means including an escapementmember and cooperating dogs for causing step by step letter spacingmovements of said carriage relatively to the frame, a lockin elementcarried by the carriage and projecta le into and out of lockingengagementwith said frame for locking the carriage against movementrelatively to said frame, and with the escapement member and dogs in ahalf letter space position with the pressure of the escapement memberrelieved rom the dogs, whereby said escapement member and dogs will beprotected from stresses tending to cause relative movement of the frameand carriage, a platen mounted on said carriage and shiftable relativelythereto for line spacing purposes, and means including said lockingelement for causing line spacing movements of said platen.

9. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on saidcarriage for letter spacing travel therewith and movable relatively tosaid carriage for line spacing purposes. means including an escapementmember and dogs connected between the frame and carriage for permittingletter spacing relative movement of the carriage and frame in a step bystep manner, an element mounted on said carriage for endwise movementinto and out of lockently of its movement into and out of lock-- ingengagement with the frame, and means controlled by the oscillation ofsaid element for imparting line spacing movements to said platen.

10. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on saidcarriage for letter spacing travel therewith and movable relatively tosaid carriage for line spacing purposes, means including an escapementmember and dogs connected between the frame and carriage for permittingletter spacing movement of the carriage and frame in a step by stepmanner, a line spacin element having an operating handle extendingforwardly from the carriage and mounted for oscillation on saidcarriage, said element having a portion movable endwise of the axis ofoscillation to lower the handle and concomitantly project said movableportion into locking engagement with the frame, whereby when saidprojecting part of said element is in locking en agement with the framethe carriage and Erame will be held against relative movement, with thedogs of the escapement free of pressure from the escapement member, anda connection between said line spacing element and said platen forimparting line spacing movement to the latter upon oscillation of thehandle.

11. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on saidcarriage for letter spacing travel therewith and movable relatively tosaid carriage for line spacing purposes, means including an escapementmember and dogs connected between the frame and carriage for permittingletter spacing relative movement of the carriage and frame in a step bystep manner, a line spacing element havin an operating handle extendingforwardly rom the carriage and mounted for oscillation on said carriage,said element having a portion movable endwise of the axis ofoscillation, to lower the handle and concomitantly project said movableportion into locking engagement with the frame,-- whereby when saidprojecting part of said element is in locking engagement with the framethe carriage and frame will be held against relative movement, with thedogs of the escapementv free of pressure from the escapement member. aconnection between said line spacing element and said platen forimparting line spacing movement to the latter upon oscillation of thehandle, and means for yicldingly holding said line spacing handle in itsupper posi tion with the carriage unlocked from the frame.

12. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on saidcarriage for letter spacing travel therewith and movable relatively tothe carriage for line spacing purposes, means including an escapementmember and dogs connected between the frame and carriage for permittingletter spacing step by step relative movement of the carriage and frame,a spindle rotatably supported by said carriage and disposed in adirection transverseto the direction of relative travel of the carriage,a line spacing handle keyed to said spindle for oscillation therewithand slidable thereon endwise along the axis of oscillation of saidspindle, a connection between the spindle and platen for imparting linespacing movements to the platen upon oscillation of the spindle by saidhandle, and a locking member movable endwise with the handle into andout of locking engagement with said frame, whereby when said handle islowered to reduce the height of the typewriter, said locking member willbe interlocked with the frame to prevent relative movement of thecarriage and hold it in a partial letter spacing position of theescapement, whereby pressure of the escapement member upon the dogs willbe relieved.

13. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on saidcarriage for letter spacing travel therewith and movable relatively tothe carriage for line spacing purposes, means including an escapementmember and dogs connected between the frame and carriage for permittingletter spacing step by step relative movement of the carriage and frame,a spindle rotatably supported by said carriage and disposed in adirection transverse to the direction of relative travel of thecarriage, a line spacing handle keyed to said spindle for oscillationtherewith and slidable thereon endwise along the axis of oscillation ofsaid spindle, a connection between the spindle and platen for impartingline spacing movements to the platen upon oscillation of the spindle bysaid handle, a locking member movable endwise with the handle into andout of locking engagement with said frame, whereby when said handle islowered to reduce the height of the typewriter, said locking member willbe interlocked with the frame to prevent relative movement of thecarriage and hold it in a partial letter spacing position of theescapement, whereby pressure of the escapement member upon the dogs willbe relieved. and means for yieldingly holding the handle in its upperposition with the locking member withdrawn from locking engagement withthe frame.

14. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on thecarriage for letter spacing travel therewith and movable relatively tothe carriage for line spacing purposes, and escapement means connectedbetween the carriage and frame for controlling their relative movement,and means supported by the carriage for imparting step by step linespacing movements to the platen and including an operating membermounted for oscillation on said carriage while imparting line spacingmovements, said member being also movable downwardly in order todecrease the effective height of the typewriter, and having a partprojectable into locking engagement with the frame when so lowered,whereby the carriage and frame will be held against relative move mentwhen said member is lowered.

15. In a typewriter or the like, a frame, a carriage movable relativelyto said frame for letter spacing travel, a platen mounted on thecarriage for letter spacing travel therewith and movable relatively tothe carriage for line spacing purposes, and escapement means connectedbetween the carriage and frame for controlling their relative movement,means supported by the carriage for imparting step by step line spacingmovements to the platen and including an operating member mounted foroscillation on said carriage while imparting line spacing movements.said member being also movable downwardly in order to decrease theeffective height of the typewriter, and having a part projectable intolocking engagement with the frame when so lowered, whereby the carriageand frame will be held against relative movement when said member islowered. and means for yieldingly holding said member in its upperunlocked position.

16. In a typewriter or the like, a frame, a carriage movable relativelyto the frame for letter spacing travel, a platen mounted on the carriagefor letter spacing travel therewith and movable relatively to thecarriage for line spacing purposes, alined bearings carried by saidcarriage with their axes extending transversely of the direction ofrelative movement of the carriage and frame, a spindle rotatably mountedin said bearings, a line spacing handle mounted on said spindle betweensaid bearings, said handle being keyed to the spindle for oscillationtherewith and also movable endwise on said spindle, an arm secured tosaid spindle, and means connected between the arm and platen for linespacing the latter upon oscillation of said handle, and a locking partmovable with the handle along the spindle into and out of lockingengagement with the frame, whereby when said handle is in one positionalong the spindle said frame and carriage will be held against relativemovement.

17. In a typewriter orthe like, a frame a carriage movable relatively tothe frame orletter spacing travel, a platen mounted on carried by saidcarriage with their axes extending transversely of the direction ofrelative movement of the carriage and frame, a spindle rotatably mountedin said bearings, a line spacing handle mounted on said spindle, saidhandle being keyed to the spindle for oscillation therewith and alsomovable endwise relatively to the axis of said spindle, an arm securedto said spindle and means connected between the arm and platen for linespacing the latter upon oscillation of said handle, a locking partmovable with the handle along the spindle axis into and out of lockingengagement with the frame, whereby when said handle is in one positionalong the spindle axis said frame and carriage will beheld againstrelative movement, and a latch for holding said handle in its positionalong the spindle axis in which the carriage is unlocked from the frame.

' 18. In a typewriter or the like, a frame, a carriage movablerelatively to the frame for letter spacing travel, a platen mounted onthe carriage for letter spacing travel therewith and movable relativelyto the carriage for line spacing purposes, alined bearings carried bysaid carriage with their axes extending transversely of the direction ofrelativc. movement of the carriage and frame, a

spindle rotatably mounted in said bearings,

a line spacing handle mounted on said spindle, said handle being keyedto the spindle for oscillation therewith and also movable endwiserelatively to the axis of said spindle, an arm secured to said spindle,and means connected between the arm and laten for line spacing thelatter upon oscillation of said handle, a locking part movable with thehandle along the spindle axis into and out of locking engagement withthe frame, whereby when said handle is in one position along the spindleaxis said frame and carriage will be held against relative movement, anda latch device for yieldingly holding said handle in one position alongthe spindle axisin which the carriage is released from the frame.

19. In a typewriter or the like, a frame. a carriage movable relativelyto the frame for letter spacing travel, a platen mounted. on thecarriage for letter spacing travel therewith, and movable relatively tothe carriage for line spacing purposes, alined bearings carried by saidcarriage with their axes extending transversely of the direction ofrelative movement of the carriage and frame, a spindle rotatably mountedin said bearings, a line spacing handle mounted on said spin- (116between said bearings, said handle being keyed to the spindle foroscillation therewith and also movable endwise on said spindle, an

arm secured to said spindle, and means connected between the arm andplaten for line spacing the latter upon oscillation of said handle, alocking part movable with the bandle along the spindle into and out oflocking engagement with the frame, whereby when said handle isin oneposition along the spindle said frame and carriage may be held againstrelative movement, and a spring latch having an oblique latch surfaceengageable with the handle for yieldingly holding the handle in itsposition on the spindle in which the carriage is released from theframe.

20. In a typewriter or the like, a frame, a

carriage movable relatively to said frame. a platen carried by thecarriage, said carriage having alined bearings with their common axisextending transversely of the direction of relative movement of saidcarriage, a spin dle rotatably supported in said bearings, meansconnected between said spindle and platen for line spacing the latter, aspacing handle having a boss slidable along and keyed to said spindle, alocking element also slidable along the spindle and connected to saidboss, whereby when said handle is moved along the spindle in onedirection, saidlocking elemcnt may be moved. into locking engagementwiththe frame to prevent relative movement of said carriage and frame, and aspring carried by one of said bearings and engaging with said handleboss to hold said handle yielding ly in a position on the spindle inwhich the carriage is released from said frame.

21. In a typewriter or the like, a frame, a carriage movable relativelyto said frame, a platen carried by the car a e, said carriage havingalined bearings with their common axis extending transversely of thedirection of relative movement of said carriage, a spin dle rotatablysupported in said bearings, means connected between said spindle andplaten for line spacing the latter, a spacing handle having a bossslidable along an d keyed to said spindle, said spindle having a channelextending endwise along the same, and a locking rod slidable in saidchannel and having an angular end interlocked with said boss. wherebysaid locking'element will be moved endwise with said handle into and outof engagem ent with said frame.

22. In a typewriter or the like, a frame, a carriage movable relativelyto said frame, a platen carried by the carriage, said carriage havingalined bearings with their common axis extending transversely of thedirection of relative movement of said carriage, a spindle rotatablysupported in said bearings. means connected between said spindle andplaten for line spacing the latter, a spacing handle having a bossslidable along and keyed to said spindle, said spindle having a channelextending endwise along the same, a locking rod slidable in said channeland having an angular end interlocked with said boss, whereby saidlockin element will be moved endwise with said handle into and out of enagement with said frame, and means for ho ding the handle in itsposition on the spindle in which the carriage is released from theframe. 23. In a typewriter or the like, aframe, a carriage movablerelatively to said frame, a platen mounted on said carri e, line spacinmechanism mounted on sai carriage an connected to said laten, saidmechanism in cluding a rotatable spindle having a chan-- nel oove alongone side of the same, a handle aving a boss mounted on said spindle andhaving an aperture in its side leading to its bearing on said spindle, arod sliding in said channel and having an angular end received in saidaperture whereby when said handle moves endwise on said spindle, saidrod will be moved into and out of locking engagement with the frame, oneside of the spindle having a flat edge, and said handle boss having acylindrical ole drilled from one and nearly to the other, and theremainder of the boss formed to fit closel to the spindle includin itsflat edge, whereb the boss will be slidingl y keyed to the spindle. 24.In a typewriter or the like, a frame, a carriage movable relatively tosaid frame, a platen mounted on said carriage, line spacing mechanismmounted on said carriage and connected to said laten, said mechanismincluding a rotatab e spindle having a channel groove along one side ofthe same, a handle having a boss mounted on said spindle and having anaperture in its side leadi to its bearing on said spindle, a rod slidingin said channel and having an angular end received insaid aperturewhereby when said handle moves endwise on said spindle, said rod will bemoved into and out of locking enga ement with the frame, one side of thespind e having a flat edge, and said handle boss having a cylindricalhole drilled from one end nearly to the other, and the remainder of theboss formed to fit closely to the spindle including its flat edge,whereby the boss will be slidingly keyed to the spindle, and a slprindevice engageable with said boss for yie ding y holding it in a positionin which the carriage is released from the frame.

25. In a typewriter or the like, a platen, a support in which the platenis rotatably mounted, a ratchet wheel connected to the platen, an armmounted on said su port for movement in a plane transverse to t e latenaxis, a pawl mounted on said arm an movable thereon into and out ofengagement with the ratchet teeth, operating means connected to saidpawl for moving the same towards engagement with the ratchet teeth andalso rocking said pawl and arm together, a sto member having an abutmentsurface extend ing along the ath of travel of the pawl with said arm, anpreventing movement of the pawl into engagement with said teeth duringwheel and platen by the at least an initial portion of the travel ofsaid arm and pawl, said stop member movable to vary the instant in thetravel 0 the pawl with the arm, at which the pawl is released therefromfor movement into engagement with the ratchet teeth, whereby the extentof movement imparted to the ratchet angular movement of sai arm and pawmay be varied, said stop member including a lever having a tail portionextendin approximately tangentially along the path of travel .of thepawl with said arm, whereby rocking of said lever will carry said tailportion out 3 the typewriter is to be enclosed, and a spring- I?actuated detent operable between saidcarriage and said handle to holdthe handle releasably in its elevated line spacing movements.

27. In a typewriter or the like, a frame, a laten carnage movablerelatively to the i rame for letter spacing travel, line 5 acingmechanism carried by the carriage incliiding an operating handleextending upwardly into a position convenient for manual operation inreturning the carriage and line spacing the platen, said handle beingmounted for oscillation and also being slidable vertically, theconnections between said handle and mechanism causing line spacing ofsaid platen when said handle is oscillated while in an position intowhich it may be vertically a usted, and a detent operable between saidcarriage and handle for locking the handle releasably in its upperposition, whereby the handle may be lowered for com actness when thetypewriter is to be enclose in a case.

28. In a typewriter or the like, a frame, a platen carriage movablerelatively to the frame for letter spacingl travel, line spacingmechanism carrie by t e carriage including an operating handle extendingupwardly into a position convenient for manual operation in returningthe carriage and line 5 acing the platen, said handle being mounted foroscillation and also being slidable vertically, the connection betweensaid handle and mechanism causing line spacin of said platen when saidhandle is oscillate and a detent automatically spring actuated intolocking position between the carriage and handle when the handle isshifted vertically, and operable position ready for to release thehandle for lowering when the typewriter is to be enclosed in a case.

J OHN H. BARRc Cpawl duringa 'ven I

